US 2018/0123218 A1 · SURFACE WAVE ANTENNA SYSTEM

Abstract

The invention relates to a surface wave antenna system, comprising at least one antenna that is electrically short in the vertical plane, with vertical or elliptic polarization and emitting a radiation, said antenna being linked to a conducting medium exhibiting a substantially horizontal surface. The antenna system being characterized in that it comprises furthermore at least one parasitic wire extending in a direction substantially parallel to the surface of the conducting medium, electrically insulated from each antenna, and arranged in the vicinity of at least one antenna in such a way as to be able to radiate by virtue of the current induced by said radiation of this antenna. The invention makes it possible to combine the resultants of each radiating element in such a way as to control the radiation pattern in the vertical plane.

Claims11

Dependent claims

Antenna system for low-frequency, medium-frequency or high-frequency surface waves, comprising:

at least one antenna which is electrically short in the vertical plane, has vertical or elliptical polarisation and emits radiation, said antenna being connected to a conductive medium having a substantially horizontal surface,
the antenna system being characterised in that it further comprises:
at least one wired parasite that is electrically insulated from each antenna and arranged in the vicinity of at least one antenna so as to be able to radiate by virtue of the current induced by said radiation from said antenna, said at least one wired parasite advantageously extending in a direction forming an angle between −10° and 10° with the surface of the conductive medium.

Dependencies are inferred from the claim text.

Surface wave antenna system

Life of this patent

Surface wave antenna system

Life of this patent

Abstract

Claims11